Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

Consider the following statements about polar plots
  1. Addition of a non-zero pole to a transfer function results in further rotation of polar plot through an angle of - 90° as ω → ∞
  2. Addition of a pole at the origin to a transfer function rotates the polar plot at zero and infinite frequencies by a further angle of - 90°
Of the above statements:
A:
Both are correct
B:
Both are wrong
C:
1 is correct and 2 is wrong
D:
2 is correct and 1 is wrong
Answer: A
No answer description is available. Let's discuss.
The phase angle curve of G(jω) H(jω) is drawn by adding the phase angles of individual factors.
A:
True
B:
False
C:
D:
Answer: A
No answer description is available. Let's discuss.

Assertion (A): Industrial robots improve productivity.

Reason (R): Robots can handle monotonous and complex jobs without error in operation.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is correct but R is wrong
D:
R is correct but A is wrong
Answer: A
No answer description is available. Let's discuss.
The response to sinusoidal excitation can be found by
A:
setting s = jω in the network function
B:
setting s = -jω in the network function
C:
taking inverse transform of network function
D:
none of the above
Answer: A
No answer description is available. Let's discuss.
The pole zero plot in the given figure is for
A:
non-minimum phase function
B:
minimum phase function
C:
all pass function
D:
either (a) or (b)
Answer: C
No answer description is available. Let's discuss.
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